how many types of indicators are there
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Explanation:
the four types of indicators are as follows: (1) input indicators (2) output indicators, (3) outcome indicators, and (4) impact indicators.
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There are two types of indicators are found in chemistry:
(1) Natural Indicators
(2) Artificial Indicators
Natural Indicators:
Natural indicators are those indicators which obtained from natural sources are called natural indicators.
Eg- litmus, turmeric, red cabbage, beetroot juice.
Synthetic Indicators:
Synthetic indicators or artificial indicators are acid- base indicators prepared from artificial substances known as synthetic indicators.
Eg- phenolphthalein and methyl orange.
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